*League disbanded July 4, 1917.
| Northern League Champions |
| Year |
Winner |
| 1902 |
Winnipeg Maroons |
| 1903 |
Winnipeg Maroons |
| 1904 |
Duluth White Sox |
| 1905 |
Duluth White Sox |
| 1906 |
No League |
| 1907 |
No League |
| 1908 |
Brandon Angels |
| 1909 |
No League |
| 1910 |
No League |
| 1911 |
No League |
| 1912 |
No League |
| 1913 |
Winona Pirates |
| 1914 |
Duluth White Sox |
| 1915 |
Fargo-Moorhead Graingrowers |
| 1916 |
Winnipeg Maroons |
| *1917 |
Fargo-Moorhead Graingrowers |
| 1918 |
No League |
| 1919 |
No League |
| 1920 |
No League |
| 1921 |
No League |
| 1922 |
No League |
| 1923 |
No League |
| 1924 |
No League |
| 1925 |
No League |
| 1926 |
No League |
| 1927 |
No League |
| 1928 |
No League |
| 1929 |
No League |
| 1930 |
No League |
| 1931 |
No League |
| 1932 |
No League |
| 1933 |
Superior Blues |
| 1934 |
Fargo-Moorhead Twins |
| 1935 |
Winnipeg Maroons |
| 1936 |
Eau Claire Bears |
| 1937 |
Duluth Dukes |
| 1938 |
Duluth Dukes |
| 1939 |
Winnipeg Maroons |
| 1940 |
Grand Forks Chiefs |
| 1941 |
Eau Claire Bears |
| 1942 |
Winnipeg Maroons |
| 1943 |
No League |
| 1944 |
No League |
| 1945 |
No League |
| 1946 |
St. Cloud Rox |
| 1947 |
Sioux Falls Canaries |
| 1948 |
Grand Forks Chiefs |
| 1949 |
Aberdeen Pheasants |
| 1950 |
Sioux Falls Canaries |
| 1951 |
Grand Forks Chiefs |
| 1952 |
Superior Blues |
| 1953 |
Fargo-Moorhead Twins |
| 1954 |
Fargo-Moorhead Twins |
| 1955 |
St. Cloud Rox |
| 1956 |
Duluth-Superior White Sox |
| 1957 |
Winnipeg Goldeyes |
| 1958 |
Fargo-Moorhead Twins |
| 1959 |
Winnipeg Goldeyes |
| 1960 |
Winnipeg Goldeyes |
| 1961 |
Aberdeen Pheasants |
| 1962 |
Eau Claire Braves |
| 1963 |
Grand Forks Chiefs |
| 1964 |
Aberdeen Pheasants |
| 1965 |
St. Cloud Rox |
| 1966 |
St. Cloud Rox |
| 1967 |
St. Cloud Rox |
| 1968 |
St. Cloud Rox |
| 1969 |
Duluth-Superior Dukes |
| 1970 |
Duluth-Superior Dukes |
| 1971 |
St. Cloud Rox |
| 1972 |
No League |
| 1973 |
No League |
| 1974 |
No League |
| 1975 |
No League |
| 1976 |
No League |
| 1977 |
No League |
| 1978 |
No League |
| 1979 |
No League |
| 1980 |
No League |
| 1981 |
No League |
| 1982 |
No League |
| 1983 |
No League |
| 1984 |
No League |
| 1985 |
No League |
| 1986 |
No League |
| 1987 |
No League |
| 1988 |
No League |
| 1989 |
No League |
| 1990 |
No League |
| 1991 |
No League |
| 1992 |
No League |
| 1993 |
St. Paul Saints |
| 1994 |
Winnipeg Goldeyes |
| 1995 |
St. Paul Saints |
| 1996 |
St. Paul Saints |
| 1997 |
Duluth-Superior Dukes |
| 1998 |
Fargo-Moorhead RedHawks |
| 1999 |
Albany-Colonie Diamond Dogs |
| 2000 |
Adirondack Lumberjacks |
| 2001 |
New Jersey Jackals |
| 2002 |
New Jersey Jackals |
| 2003 |
Fargo-Moorhead RedHawks |
| 2004 |
St. Paul Saints |
| 2005 |
Gary Railcats |
| 2006 |
Fargo-Moorhead Red Hawks |
| 2007 |
Gary Railcats |
